Home / 1,903.04-2,855.60-1,324.80

Finding the Fourth Proportional to 1,903.04, 2,855.60 and 1,324.80

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Solution

The fourth proportional to 1,903.04, 2,855.60 and 1,324.80 is: 1,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.04 : 2,855.60 = 1,324.80 : x
  2. Step 2: Convert to fraction form
    1,903.04/2,855.60 = 1,324.80/x
  3. Step 3: Cross multiply
    1,903.04x = 2,855.60 × 1,324.80
  4. Step 4: Simplify right side
    1,903.04x = 3,783,098.88
  5. Step 5: Solve for x
    x = 3,783,098.88/1,903.04
  6. Step 6: Final answer
    x = 1,987.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.